Cheap Flights to San Antonio from HK$521

Wherever you're coming from, flying can be a seamless experience if you're well prepared. We've put together a list of handy tips and tricks that will get your San Antonio escape started on the right foot.What to pack in your hand luggage:

• The trick to having a worry-free flight experience is to pack in advance. First up, the essentials: passport, boarding pass, credit cards and medications. Next, bring items that'll help keep you entertained, like some electronic devices or a good read. It's also smart to pack your chargers, a neck pillow and a pair of headphones. And of course, be sure to chuck in toiletries like a toothbrush, deodorant and a spare change of clothes.

Do not pack the following items in your hand luggage:

• Squeeze all your full-sized bottles of hair gel and hairspray in your checked baggage. Any liquids or gels in your carry-on bag larger than 3.4 ounces (100 milliliters) won't be allowed on. Sharp or pointed objects, like your Swiss Army knife, and dangerous products which are explosive or flammable, such as spray paint, flares and strong acids, are also restricted.

What to wear on a flight:

• The long, narrow aisles of your airplane are no place for a fashion parade. Layer up with comfy clothing and don't forget to bring a cardigan as it can get chilly inside the cabin during longer flights. Enclosed, flat shoes are also a sensible choice.
• Caused by lengthy periods of inactivity, DVT (deep vein thrombosis) is a condition that can affect passengers on long-haul flights. The good news is there are numerous ways to reduce your risk of developing it. Drink plenty of water, walk around the cabin as much as you can and wear compression tights or socks.

The answer is — be prepared. We've rounded up some top tips for a stress-free trip through airport security. Look out San Antonio, here you come:

• Airport security personnel first need to know that you have a valid passport and matching boarding pass before you're allowed to proceed any further. Keep them close by.
• Next up is the X-ray machine. Empty your pockets and remove anything that is likely to set off the alarm. This includes things like earphones or headphones, as well as heavy jackets or coats. They'll all need to go on the X-ray conveyor belt.
• Your electronic gadgets like laptops and phones will also have to go through the machine for inspection. Don't worry, you'll be back online soon enough.
• Traveling with a new perfume or cologne? As long as the volume is no greater than 3.4 ounces (100 milliliters) and it's stored in a clear zip-close bag, you're allowed to bring it with you in your carry-on bag.
• There's a good chance you'll be required to take your shoes off to be X-rayed, so wearing lightweight sneakers is always a wise idea.
• Sharp or pointed items are not allowed on board. They'll be seized at security, so pack them safely away in your checked baggage.